Ettringite and Ulexite Physical Properties
Tenacity
Not Available
  
Not Available
  
Solubility
Partially soluble in water
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
1.77
  
1.65-1.99
  
Fracture
Not Available
  
UnevenAnthony et al, Uneven, UnevenAnthony et al, Uneven, Brittle, Metallic
  
Cleavage
Perfect on {10 1 0}
  
{010} Perfect, {110} Perfect
  
Mohs Hardness
2-2.5
  
2-2.5
  
Chemical Composition
Ca 6Al 2(SO 4) 3(OH) 12 26H 2OMichael OâDonoghue , Gems, Sixth Edition (2006)
  
NaCaB 5O 6(OH) 6 · 5H 2OMichael OâDonoghue , Gems, Sixth Edition (2006)
  
Ettringite and Ulexite Chemical Formula
While comparing Ettringite and Ulexite physical properties, the important data you should know is its chemical composition. Since chemical formula defines the molecular structure of the crystal, most of the physical properties like color, tenacity, solubility are governed by Ettringite and Ulexite chemical formula.
- Chemical formula of Ettringite- Ca 6Al 2(SO 4) 3(OH) 12 26H 2OMichael OâDonoghue , Gems, Sixth Edition (2006)
- Chemical formula of Ulexite- NaCaB 5O 6(OH) 6 · 5H 2OMichael OâDonoghue , Gems, Sixth Edition (2006)
Ettringite and Ulexite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Ettringite and Ulexite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Ettringite and Ulexite Optical Properties during the identification of gemstone. Specific gravity of Ettringite is 1.65-1.99 whereas that of Ulexite is 1.65-1.99.